A simple search for "Tom Lehrer" brings up a lot; if you're looking for some entry points, here are a few:
- Poisoning Pigeons in the Park
- The Vatican Rag
- The Masochism Tango
- Send the Marines
- National Brotherhood Week
- I Got it from Agnes (from a British broadcast in 1980; a song that was supposedly too risque for Lehrer's original records)
- Various songs about math (from the 1997 Kaplansky event)
- A song about sociology (from the 1997 Kaplansky event)